Patent ES-8500067-A1 (ES)
Title: Peristaltic hose pump for medical use
IPC: A61M1/00
Filed: 1984-01-19
Abstract: The peristaltic pump, esp. for medical applications, uses a mechanically driven element which exerts on a hose a squeezing action in the direction from the fluid inlet to the fluid outlet. The hose is laid in a circular loop in a hinged or detachable cover and is squeezed by a swashplate, driven by a gear motor. - The gear motor (15, 16) is flanged to the housing (10). An oblique shaft end (18) carries a swashplate (20) on a ball bearing (19), to exert a squeezing action on the hose (26), which is laid in a circular loop into the groove (31) of the hinged cover (22). A diaphragm (25) creates a fluid-tight seal between the swashplate drive and the space with the hose. A compression spring (41) exerts the necessary pressure for the swashplate.  (1/5) EPAB- EP-103073 B Hose pump, in particular for medical purposes, comprising a housing (1) to support therein a driving shaft (14), a shaft piece (18) obliquely projecting from the driving shaft, a swash plate (20) supported on the shaft piece (18) and retained to be substantially non-rotatable relative to the housing (10), an annular hose (26) joined to the end side of the swash plate and whose ends form an inlet and an outlet, and a cover (22), that hose ends (27,28) are connected to a common connecting piece (29) insertable in the cover (22) mounted at the housing and supporting the hose, characterised in that the underside of the cover (22) contains an annular groove (31) for fixing the annular hose section, and a clamping means (36;36') for fixing the hose in the cover (22), that the hose ends (27,28) are connected to a common connecting piece (29) insertable in the cover (22) and having terminals (30) for inlet and for discharge, that the cover is connected to the housing (10) by a hinged axle (34) at the side opposite to the connecting piece (29), and that in the vicinity of the connecting piece (29), there is provided at the housing (10) a locking means (37,38,39) for locking the cover in the closure position. - EP-103073 B Hose pump, in particular for medical purposes, comprising a housing (1) to support therein a driving shaft (14), a shaft piece (18) obliquely projecting from the driving shaft, a swash plate (20) supported on the shaft piece (18) and retained to be substantially non-rotatable relative to the housing (10), an annular hose (26) joined to the end side of the swash plate and whose ends form an inlet and an outlet, and a cover (22), that hose ends (27,28) are connected to a common connecting piece (29) insertable in the cover (22) mounted at the housing and supporting the hose, characterised in that the underside of the cover (22) contains an annular groove (31) for fixing the annular hose section, and a clamping means (36;36') for fixing the hose in the cover (22), that the hose ends (27,28) are connected to a common connecting piece (29) insertable in the cover (22) and having terminals (30) for inlet and for discharge, that the cover is connected to the housing (10) by a hinged axle (34) at the side opposite to the connecting piece (29), and that in the vicinity of the connecting piece (29), there is provided at the housing (10) a locking means (37,38,39) for locking the cover in the closure position. (9pp) USAB- US4483666 A The cover of the hose pump has, on its underside, an annular groove for securing the annular hose section as well as a clamp for fixing the hose in the cover. The hose ends are connected with a common coupling which is insertable in the cover and has inflow and outflow connections. - On the side of the cover opposite the coupling, the cover is connected with the housing by a hinge. A lock is arranged near the coupling for locking the cover in the closed position on the housing.